Sounds weird and tacky, but this article talks about an app that lets you send hugs. Their definition of a hug is to put your phone to your chest and when it detects that proximity, it vibrates to simulate a hug. It sounds boring but this article describes how something so simple and straightforward can actually create an emotionally pleasant feeling.
It’s as if the warmth and presence of your partner has been magically transmitted through the phone. Pressed against your chest, an Avocado hug feels almost like a heartbeat.